Radiothérapie des cancers de l‘estomac -...
Transcript of Radiothérapie des cancers de l‘estomac -...
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Radiothérapie des cancers de l‘estomac
Bénéfices, simulation, volumes cibles, doses et fractionnement, validation du plan de traitement,
association radio-chimiothérapie
Prof. Philippe MAINGON
Radiation Oncology Department
Centre Georges-François Leclerc, Dijon
EGAM 2007 ROG Meeting
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Siewert staging system
Siewert JR Ann Surg 2000;232:353-61
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Mariette C. Lancet Oncol 2011;12:285-93
Oesogastric junction adenocarcinoma :
Which therapeutic approach ?
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Un Oncologue Radiothérapeute en Gastro-entérologie …
1. INDICATION
2. VOLUMES
3. DOSES
4. TECHNIQUE
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Un Oncologue Radiothérapeute en Gastro-entérologie …
1. INDICATION
• Stratégie en RCP
Radiothérapie
Radio-chimiothérapie
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Un Oncologue Radiothérapeute en Gastro-entérologie …
1. INDICATION
• Stratégie en RCP
Chirurgie
Place des traitements associés ?
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Cunningham D. New Eng J Med 2006;355:11-20
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Cunningham D. New Eng J Med 2006;355:11-20
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Chemoradiotherapy after surgery compared with surgery alone for adenocarcinoma of the stomach or gastroesophageal junction Macdonald JS et al NEJM 2001, 345;10:725-730
• 556 patients
• Résection chirurgicale complète
• Stades IB à IVM0, PS 2
• 45Gy, 25f : lit tumoral, marges = 2 cm
ganglions régionaux
• Assurance de qualité AVANT (35%) et après (6,5%)
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Chemoradiotherapy after surgery compared with surgery alone for adenocarcinoma of the stomach or gastroeosophageal junction. Macdonald et al NEJM 2001,10;345:725-730
•PROTOCOLE: • 1- Chimiothérapie 1 cycle
• 5Fu (425 mg/m²) AF (20mg/m²) J1 à J5
• 2- Radio-chimiothérapie J28 • 45 Gy, 1,8 Gy/f, 5 semaines
• 5Fu (425 mg/m²) AF (20mg/m²) J1-J4 et J28-J30
• 3- Chimiothérapie 2 cycles • 5Fu (425 mg/m²) AF (20mg/m²) J1 à J5
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Chemoradiotherapy after surgery compared with surgery alone for adenocarcinoma of the stomach or gastroeosophageal junction. Macdonald et al NEJM 2001,10;345:725-730
•CHIRURGIE : • Gastrectomie totale avec curage D2
• Ganglions péri-gastriques, coeliaques, spléniques, cardia et hépatique selon la localisation
• D2: 10% • D1: N+ = 36% • D0: 54% • Facteur non significatif dans l’essai
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Chemoradiotherapy after surgery compared with surgery alone for adenocarcinoma of the stomach or gastroeosophageal junction. Macdonald et al NEJM 2001,10;345:725-730
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Chemoradiotherapy after surgery compared with surgery alone for adenocarcinoma of the stomach or gastroeosophageal junction. Macdonald et al NEJM 2001,10;345:725-730
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INT 0116: updated analysis
Smalley S.R. JCO 2012;30:2327-33
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INT 0116: updated analysis
Smalley S.R. JCO 2012;30:2327-33
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Impact of inadequate LNS on OS in resectable gastric cancer
Datta J. Cancer 2014
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Datta J. Cancer 2014
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• 91 patients versus 694 DGCT D1= 369 D2= 325
• Maruyama Index for unresected Disease M1
Dikken JL JCO 2010;28:2430-2436
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CRT – D1
CRT – D2
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Preoperative chemoradiotherapy for esophageal or junctional carcinoma: CROSS
• Carboplatin 2mg/ml/mn + Paclitaxel 50 mg/m² • Days 1,8,15,22,29
• Radiotherapy: 41.4 Gy / 23f /1.8 Gy GTV + 1.5cm + 4 cm
• 837 patients (437 excluded) 368 randomized
• NCI CTC AE V 3.0: RTCT : Grade 3 or higher = 13% 1 toxic death
S RTCT – S
• Resection rate 13% 4% p<0.002
• Postop death 3% 2% p=0.85
• R0 resection 69% 92% p<0.001
• Resected LN 18 15 p=0.17
• N+ 75% 31% p<0.001
Van Hagen P. N Eng J Med 2012:366:2074-84
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Preoperative chemoradiotherapy for esophageal or junctional carcinoma: CROSS
Van Hagen P. N Eng J Med 2012:366:2074-84
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Oppedijk V. JCO 2014;32:385-91
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Van Hagen P. N Eng J Med 2012:366:2074-84
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Talsma A.K. Ann Surg 2014;260:786-93
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Talsma A.K. Ann Surg 2014;260:786-93
The total number of
resected lymph nodes
was significantly
associated with
survival in the surgery
arm but not in the
multi-modality arm.
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ARTIST trial: Adjuvant chemotherapy versus chemoradiation in gastric cancer
Park SH JCO 2015;33
After D2 resection
• 2 cycles XP
• 45 Gy /5W Xeloda
• 2 cycles XP
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ARTIST trial: Adjuvant chemotherapy versus chemoradiation in gastric cancer
Park SH JCO 2015;33
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La ‘TRI-THERAPIE’
• 1- Chimiothérapie d’induction
• 2- Radio-chimiothérapie
• 3- Chirurgie
• 38 patients, uT3: 90%, uN1: 66%
• Résection RO : 95%
• Réponse complète histo-pathologique: 30%
• Recul médian: 20 mois, médiane non atteinte.
Ajani JA, Cancer, 2001;92:279-86
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La ‘TRI-THERAPIE’
• The use of trimodality therapy for the treatment of operable esophageal carcinoma in the veteran population Billingsley KG et al Cancer 2001,92;5:1272-1280
• 695 patients
• 77% chirurgie seule
• 23% : radio-chimiothérapie d’induction puis chirurgie
• Survie médiane = 15 mois
• Pas d’impact de la ‘tri-thérapie’ sur la survie
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INDICATIONS
•OESOGASTRIC JUNCTION • T1-2 N0 : Surgery TYPES I – II – III • T1-4 N1-3:
TYPES I et II preoperative or perioperative chemotherapy + Surgery
but chemoradiation should be discussed TYPE III : perioperative chemotherapy or postoperative chemoradiation
•GASTRIC ADENOCARCINOMA • T1 – 2 N0 : Surgery • Others : perioperative chemotherapy or postoperative
chemoradiation
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Adjuvant postoperative chemoradiation in gastric cancer during the 2004 – 2008 period
CHEMORADIATION
N No Yes p
Overall 79 % 21 %
Sexe Female Male
87 % 13% 74 % 26%
0.047
Age < 65 65 – 74 > 75
52 % 48% 77 % 23% 97.5 % 2.5%
0.001
Charlson score 0 1 2+
67 % 33 % 83 % 17 % 100 % -
0.001
Multidisciplinary M. Yes No
72 % 28 % 89 % 11 %
0.007
Bouvier AM Dig Liver Dis 2014;46:72-75
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Adjuvant postoperative chemoradiation in gastric cancer during the 2004 – 2008 period
CHEMORADIATION
Odds Ratio CI p
Sexe Female Male
1 1.11 [0.39 – 3.15]
0.846
Age < 65 65 – 74 > 75
1 0.41 [0.16 – 1.05] 0.03 [0.01 – 0.15]
0.00000
Charlson score 0 > 1
1 0.26 [0.09 – 0.72]
0.009
Multidisciplinary M. Yes No
1 0.22 [0.08 – 0.64]
0.005
Bouvier AM Dig Liver Dis 2014;46:72-75
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Un Oncologue Radiothérapeute en Gastro-entérologie …
2. Volumes
• Primitif
• Ganglions
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A new suggestion for the radiation target volume after subtotal gastrectomy in patients with stomach cancer
Heerim Nam IJROBP 2008; 71:447-455
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Pattern of LR recurrence in gastric cancer patients treated with preoperative chemoradiotherapy
Reed V. IJROBP 2008;71:741-747
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Anatomy
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Japanese Classification of Gastric cancer Lymph
node stations JGCA 1998
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Japanese lymph node
compartments
5 Y - OS
N0 n=2155 45% 82%
N1 n= 907 19% 50%
N2 n=1211 25% 24%
N3 n= 295 6% 6%
N4 n=159 3% 2% National Cancer Center Tokyo 1962-84 n=4827
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Adenocarcinomas of the GEJ
Regional lymph nodes UICC TNM 2002
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Target volume definition
GEJ I
Siewert 1987
Feith 2006
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1 and 2: paracardial nodes left and right
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7: left gastric artery
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Target volume definition
GEJ II
Siewert 1987
Feith 2006
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9: celiac artery
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9: celiac trunc
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Target volume definition
GEJ III
Siewert 1987
Feith 2006
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10: splenic hilum 11: splenic artery
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Target volume definition Proximal third
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3: lesser curvature 4: greater curvature
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Target volume definition Middle third
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8: common hepatic artery
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12: hepatoduodenal ligament
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5: suprapyloric 12: hepatoduodenal ligament
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Target volume definition Distal third
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6: infrapyloric
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13: posterior surface of the pancreatic head
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14: superior mesenteric vein/artery
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ATLAS and GUIDELINES
• EORTC-ROG expert opinion: radiotherapy volume and treatment guidelines for neoadjuvant radiation of adenocarcinomas of the gastroesophageal junction and the stomach.
Matzinger O1, Gerber E, Bernstein Z, Maingon P, Haustermans K, Bosset JF, Gulyban A, Poortmans P, Collette L, Kuten A.
Radiother Oncol. 2009;92:164-75
• Upper abdominal normal organ contouring guidelines and atlas: a Radiation Therapy Oncology Group consensus.
Jabbour SK1, Hashem SA2, Bosch W3, Kim TK4, Finkelstein SE5, Anderson BM6, Ben-Josef E7, Crane CH8, Goodman KA9, Haddock MG10, Herman JM11, Hong TS12, Kachnic LA13, Mamon HJ14, Pantarotto JR15, Dawson LA16.
Pract Radiat Oncol. 2014;4:82-9
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Un Oncologue Radiothérapeute en Gastro-entérologie …
3. Dose
• Marges
• Contraintes aux OARs
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Target volume delineation GEJ and stomach
• location of the primary tumour
• corresponding regional lymph nodes
• CTV = corresponding lymph node stations
• PTV = CTV + 1 cm
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spinal cord V45 0%
lungs V20 20%
heart V40 30%
liver V30 60%
kidneys V20 70% + 30%
Target volume delineation Organs at risk
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Un Oncologue Radiothérapeute en Gastro-entérologie …
4. Technique
• 3D CRT
• IMRT
• Static / Dynamic / Rotational
• Procedures of IGRT
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• 18 patients
• 2 ECF and 2 CF concurrently • CDDP 60 mg/m²
• PTV 1 = 39 Gy / 28 F
• PTV 2 = 50.4 Gy / 28 F
Yaremko B.P. RO 2013;8:33
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Min A.Y. Cancer 2010;
IMRT
3DCRT
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Double-arc volumetric modulated therapy improves dose distribution compared to static gantry IMRT and 3D conformal radiotherapy for adjuvant therapy of gastric cancer
Zhang Radiat Oncol 2015;10:114
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Double-arc volumetric modulated therapy improves dose distribution compared to static gantry IMRT and 3D conformal radiotherapy for adjuvant therapy of gastric cancer
GFR
Cockcroft-
Gauss formula
Dose effect relationship
D mean
Tc99m-mAG3-
renography
Left renal function
Mixt effect model
Trip A. Radiother Oncol 2015:114:421-426
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IMRT limits nephrotoxicity after chemoradiation for gastric cancer
Trip A. Radiother Oncol
2015;114:421-426
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Un Oncologue Radiothérapeute en Gastro-entérologie …
4. Technique
• 3D CRT
• IMRT
• Static / Dynamic / Rotational
• Procedures of IGRT
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Un Oncologue Radiothérapeute en Gastro-entérologie …
5. Protocoles ouverts
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22114-40111 TOP GEAR TRIAL OF PREOPERATIVE THERAPY FOR GASTRIC AND ESOPHAGOGASTRIC JUNCTION ADENOCARCINOMA
A randomised phase III trial of preoperative chemoradiotherapy versus preoperative chemotherapy for resectable gastric cancer
Study Coordinator: Karin Haustermans (ROG)
Study co-coordinator: Florian Lordick (GI)
Leading group: AGITG
Study coordinator AGITG: Trevor Long
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22114 - 40111: Study schema
76
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22114 - 40111: Study endpoints
77
Part 1 (Phase II component)
Primary: Pathological complete response rate
Secondary:
• Toxicity (including surgical morbidity and mortality)
• Feasibility of preoperative chemoradiation (compliance)
• Accrual
Part 2 (Phase III component)
Primary: Overall survival
Secondary:
• Disease free survival
• Toxicity
• Pathological response rate
• Surgical R0 resection rate
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ADCI OO2 Prodige French
• Phase II/III multicentrique randomisé en plan factoriel évaluant • Chirurgie première versus chimiothérapie première
• Chimiothérapie par XELOX versus ECF
dans les adénocarcinomes gastriques à cellules indépendantes.
• BRAS A: 3 ECF - Gastrectomie totale avec curage D2 – 3 ECF
• BRAS B: 3 XELOX – Gastrectomie totale curage D2 – 3 XELOX
• BRAS C: Chirurgie – 6 ECF
• BRAS D: Chirurgie – 6 XELOX
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Surveillance
•Thésaurus National de Cancérologie Digestive
•Pas de surveillance hors clinique
•Surveillance des gastrectomisés …
•Suivi des patients irradiés
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Sudo K. JCO 2013;31:4306-10
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